Photosynthesis - Part I

Photosynthesis

Chapter 5

Compounds You Need to Know:

1.

Carbon dioxide

2.

Dihydrogen monoxide

3.

Oxygen

4.

Glucose or Fructose

5.

Phosphoglyceric acid

6.

Phosphoglyceraldehyde

7.

Ribulose 1, 5 diphosphate / Ribulose biphosphate

8.

Adenosine diphosphate

9.

Adenosine triphosphate

10.

Nicotinamide dinucleotide phosphate

Multiple Choice

What is the abbreviation for Carbon dioxide?

• CO2
• C2O
• CO2O
• CO2H

Multiple Choice

What is the name for PGAL?

• Dihydroxyacetone phosphate
• Phosphoglyceric acid
• Phosphoglyceraldehyde

• Phosphoglycericaldehyde

Multiple Choice

How would you write the formula for Dihydrogen monoxide?

• H2O2
• HO2
• H3O
• H2O

Multiple Choice

What is the abbreviation for adenosine diphosphate?

• AMP
• ADN
• ADP
• ATP

ADP vs ATP

Multiple Choice

What is the difference between ADP and ATP?

• ADP is more energy-rich than ATP.
• ATP has two phosphate groups, while ADP has three.
• ATP is a nucleotide, while ADP is a protein.
• ATP has three phosphate groups, while ADP has two.

Photosynthesis

Photosynthesis: The study of light energy.

A.

Autotrophs (producers) - organisms that help trap light energy and
convert it to chemical energy (carbohydrates) during photosynthesis.

B.

Autotrophs are organisms that make their own food.
a.How is this possible?

They use sunlight.

b.

The light (visible light) spectrum:

R

O

Y

G

B

I

V

●Red is the weakest light. It has the longest wavelength.

●Violet is the strongest light. It has the shortest wavelength.

Multiple Choice

What are autotrophs?

• Autotrophs are organisms that can produce their own food.
• Autotrophs are organisms that rely solely on sunlight for survival.
• Autotrophs are a type of animal that cannot produce food.
• Autotrophs are organisms that consume other organisms for energy.

Multiple Choice

What is an example of an autotroph?

• Fungi
• Plants
• Bacteria
• Animals

Multiple Choice

What is ROYGBIV?

• A musical scale.
• The visible light spectrum.

• The colors of accessory pigments.

• A type of fruit.

Multiple Choice

What color of the visible light spectrum has the shortest wave length?

• Red
• Blue
• Green
• Violet

Multiple Choice

What color of the visible light spectrum has the weakest light?

• Red
• Yellow
• Green
• Blue

Photosynthesis

●Chlorophyll along with accessory pigments absorb and trap this light
energy from the sun. You see plants as a green color because green is the
color of the spectrum that is being reflected.

●Photosynthesis involves the light and the dark reactions. Its rate is
affected by:

○The amount of water (H2O)

○The amount of carbon dioxide (CO2)

○The amount of Phosphorus (P)

○The Enzymes that are available

Multiple Choice

True or False: Leaves on trees are really green.

• True
• False

A Closer Look at the Light Reaction

“The trapping of energy and splitting of water”

Chlorophyll is one of the top 5 biological compounds along with ATP, DNA,
RNA, and water.

There are 2 types of chlorophyll:

Chlorophyll A - which is blue green in color

Chlorophyll B - which is yellow green in color.